diff --git a/deploy-master.sh b/deploy-master.sh
index 66a290d6..eadddfe2 100755
--- a/deploy-master.sh
+++ b/deploy-master.sh
@@ -21,6 +21,7 @@ rm -rf $PROJECT_NAME
 git clone .. $PROJECT_NAME
 cd $PROJECT_NAME
 git checkout $BRANCH
+git submodule update --init
 
 # Test first.
 tox